Automatic liquid pump



.my s. 1924.y y 1 1,500,177

W. S. AUSHERMAN AUTOMATIC LIQUID PUMP Filed Junel. 1923 2 Sheets-Shet ll V F/ I ff l l 7 o o -o j o o o 1 14,4 j: 2f :1 .f ZJ

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W.S.AU$HERMAN AUTOMATIC LIQUID PUMP Filed June l. 1923 2 Sheets-Sheet 2Patented July 8, 1924.

UNITED sTATEs WILLIAM s. AUsHER-MAN, Yor TALM-Aen, KANSAS.

AUTOMATIC Applicationled June 1,

To all whom t may concern.'

' Be it known thatI, WILLIAM S. AUSHER- MAN, a citizen of the UnitedStates, residing at Talmage, in the county of Dickinson and State ofKansas, have invented a new and useful Automatic Liquid Pump, of whichthe following isa specification.

This invention aims to provide a simple coin-control for a dispensingpump 'of the sort used in handling gasoline Vandother liquids. Theinvention aims, further,` to improve generally and to enhance theutility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as Vthedescription proceeds, the invention resides inthe combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, itvbeing understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can `be made without departing from the spirit of the invention. Y

It is within the province of the disclosure to improve generally and to,enhance the utility of devices of that type to-which the inventionappertains.

In the accompanying drawings Figure 1 shows in vertical section, adevice constructed in accordance with the inven tion, parts appearing inelevation; Figure 2 is a section on the line 2-2 ofv Figure 1, partsappearing in elevation Figure 3 is a section on the line 3-3 of Figure1.

In carrying out the invention, there is provided a support or casing 1supplied at its upper end with a guide 2 and equipped at its lower endwith a gland 3. The liquid to be disposed is pumped upwardly through apipe 4 having a laterally extended spout 5,

. the pipe being connected to the lower portion of the casing 1 ifdesired. In the upper part of the casing 1V there is a coin chute 6. Acoin placed in the chute 6 ultimately finds its way into a drawer 7slidably mounted in the lower portion of the casing 1. VAt its lowerend, the coin chute 6 has a substantially vertical mouth 8. v

A shaft 9 is journaled for rotation in the casing 1 and may berotatedthrough the instrumentality of a crank 10 Yor otherwise. Aratchet wheel 11 is secured to the shaft 9 and is .located within thecasing 1. The

ratchet wheel 11 is engaged by a back stopV paw112 pivotally mounted at14. on the eas- LIQUID PUMP.

1923. Serial No. 642,846.

ing 1. The ratchet wheel 11 has a radial slot 15 wherein a wrist pin v16is adjustably mounted, thereby to vary thethrowV of a pump .plunger 17mounted for reciprocation in the Vguide 2 and in the gland 3,and'constituting part of the mechanism whereby` the liquid to be dispensedis carried upwardlyk through the pipe 4 and outwardly throughv the.spout 5..v The lowerend of a pitman is mounted pivotally on the wristpin 16 and the upper end of the pitman is 19 to the pump plunger 17.

On its periphery theratchet wheel -11 is supplied with a projection20`located'to one side of the teeth of theratchet wheel. The

pivoted at projection 20 is adapted to cooperate with a detent orlever.21, mounted to movev be# tween stop pins 33 on the casing V1 andfulcrumed intermediate its ends, as at 22, on a bracket. 23 carried' bythecasing 1.1 A hanger 25 is pivoted at of the detent 21.

A coin receptacle `is provided, and is de.- noted generally by thenumeral 26. The coin receptacle 26 comprises oppositely ydisposedtrough-shaped members 27, one of'which ts "fff 24 to the outer endslidably within the other, one of said memy bers having an elongatededge-opening for the reception of the lower end of the coin chute 6. Attheir upper ends, the members 27 of the coin receptacle are pivoted asat 28 to the hanger 25. One member of the coin receptacle has avertically elongated guide 29 mounted to slide on'a bracket 30 which iscarried by the casing 1. A retractile spring 31 is connected at its endsto the members 27 of the receptacle, to draw the lower ends of saidmembers together. The inner walls of the members 27 of the convergingcams 35.

In practical operation, a coin is inserted i into the coin/chute 6 andmoves downwardly into the coin receptacle 26. weight of the coin in thecoin receptacle, the detent lever 21 is tilted on its fulcrum 22 and,thus, the inner end of the detent lever is "moved out of the path of theprojection 20 on the ratchet wheel 11. This operation sets the ratchetwheel free for rotation, and the ratchet wheel may be turned through theinstrumentality of the shaft 9 and the crank 10. When the ratchet wheel11 is rotated, the pitman 18 imparts reciprocation to the pump plunger17,`and a quantity of'other Under the of the spout 5. When the ratchetwheel 11 is rotated, the projection 20 rides between the cams 35 on themembers 27 of the coin receptacle 26 and spreads them apart, permittingthe coin to drop from the coin receptacle 26 into the drawer 7. As soonas the projection 2O on the ratchet wheel 11 is free from the cams 35,the members 27, of the coin receptacle 26 swing back into the closedposition shown in Figure 3 of the drawings, under the action of thespring 31. As soon as the coin receptacle 26 is relieved o the weight ofthe coin, the detent lever 21 drops back into the position shown inFigure 1 in contact with the lowermost stop pin 38, the inner end of thedetent lever being disposed in the path of the projection 2O on theratchet wheel 11. vI lVhen the ratchet wheel 11 has been rotatedsuiiciently, the projec tion 2O comes into contact with the inner end ofthe detent lever 21, and, thus, the action of the pump mechanism isstopped, it being impossible for the purchaser to secure a greaterquantity of liquid than that called for by the depositing of a singlecoin. It is to be observed that the projection 2O exercises a two-foldoiiice. First, cooperating with the detent lever 21, it constiutes ameans for stopping the rotation of the ratchet wheel 11, and, secondly,entering between the cams of the coin receptacle 26, it constitutes ameans for swinging the members 27 of the receptacle apart, on theirpivotal mounting 28, thereby permitting the coin to drop from the coinreceptacle into the drawer 7. f

W'hat is claimed is:

1. In a device of the class described a coin receptacle comprisingseparable parts, a movable detent carrying the receptacle, a rotarymember including a projection engaging the detent to hold the rotarymember against rotation, the detent being movabley out of engagementwith the projection under the weight of a coin in the receptacle, andthe projection being so located vas to separate the parts of thereceptacle and to permit a. discharge of the coin in theref ceptacie andto permit a return of the-de-l tent into engagement with the projection.

2. In a device of the class described, acoin receptacle comprising.;`separable parts, a detent lever, means for fulcruming the leverintermediate its ends, means for mounting the parts o1c the receptaclepivotally `on the lever, arotary member, and a projection on the. rotarymember, the projection cooperating with the detentA lever to holdtherotary member against rotation, the projectionbeing adapted to4 coactwith said parts ofthe coin rece tacle'to bring about aise aration,

thereof and a discharge Lofthecoin,thereby permitting the detent lever,to return into the path of the projection. j'. i

AIn testimony .that Iclaimthe foregoing as my own, I havehereto afHXedmy signaf ture in the presence of twowitnesses.,

AWILLIAM S. AU SHERMAN. Witnesses: l f B. MIKULECKY CLIFFORD RICE:

